Thrashing-machine



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'W- W- DINGEE. THRASHING MACHINE.

N0. 488,730. Patented Dec. 27,1892.

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W. W. DINGEE. THRA-SHING MACHINE.

No. 488,730. Patented 1360111892.

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w. WLDINGEE. I THRASHING MACHINE.

v 0. 488,730. Patented Dec. 27, 1892,

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a w a M W NITED STATES PATENT OFFICE.

WILLIAM w. DINGEE, on RACINE, WISCONSIN.

THRASHlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 488,730, dated December2 7, 1892.

Application filed February 15, 1892. Serial No. 421,611. (No model.)

To aZZ whom it may concern:

Beit known thatI, WILLIAM W. DINGEE, a citizen of the United States,residing at Racine, in the county of Racine and State of Wisconsin, haveinvented certain new and useful Improvements in Thrashing-Machines; andI do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention is an improvement'in thrashing machines and consists in thenovel features of construction and combination of parts, whereby themachines are made more compact in form, more cheaply and whereby otheradvantageous results are secured.

In the drawings I have shown one form in which I have contemplatedembodying my invention and said invention is fully disclosed in thefollowing description and claims.

Referring to the said drawings, Figure 1 is an exterior view of one sideof a thrashing machine, embodying my invention. Fig. 2 represents alongitudinal section of the said machine. Fig. 3 represents a transversesection on line :1:w of Fig. 2. Fig. 4 is a detail view of the flexiblecheck-board.

In the drawings reference being had to the letters of reference markedthereon, A represents the thrashing cylinder of any ordinary or usualconstruction and B is the concave provided intermediate its teeth withperforations 1) for the passage of grain therethrough.

O is an inclined grate or perforated plate located in rear of theconcave and forming a continuation thereof.

D is a crank shaft extending transversely .of the machine and suppliedwith power in any desired manner, and to this crank shaft is secured aseries of double toothed walking rakes E E. In the drawings I haverepresented the machine provided with eight of these rakes mounted inseries of four, on opposite cranks of the shaft D and alternating witheach other, so that when four of the rakes are in their highestpositions the other four rakes which alternate therewith will occupytheir lowest positions as shown in Figs. 2 and 3.

The frame work of the machine is also provided with strips F whichextend longitudiciprocating motion.

nally of the machine intermediate each pair of rakes, as shown in Fig.3, and said strips are perforated to allow any thrashed grain fallingupon them to pass through. The rear end of each rake E is beveled asshown at e, and said beveled portions engage and slide upon the inclinedbearing surface G, when the shaft D is rotated so that a verticalreciprocating or bounding motion is imparted to the rear ends of saidrakes in addition to the endwise re- Beneath the said rakes E E islocated the grain table H, which is inclined downwardly toward thecylinder end of the machine, and said rakes E are provided with teeth ee on both their upperand lower sides, the upper teeth e being for thepurpose of feeding the straw rearwardly and agitating the same, whilethe lower teeth 6 assist in conveying the grain down said inclinedtable.

Beneath the lower end ofthe grain table H, is the shaking shoe K whichextends the full width of the machine and is provided with an inclinedbottom h said shoe being suspended by inclined spring hangers it, seeFig. 1, the sides of the shoe forming part of the sides of the casing ofthe machine. The shoe K is provided with a perforated plate or sieve itupon which the grain from the grain table H is deposited and the shoe isalso provided with an inclined extension 10* which projects forwardbeneath the concave and the inclined grate O and conducts all grainpassing through the apertures of the same, to the perforated plate orsieve lo. I prefer to hinge the screen at its forward end and to providemeans for adjusting its rear end, as shown in Fig. 2. In this instance Ihave shown the sides of the shoe provided with a series of apertures kand a bolt or rod 10 is made to engage one pair of apertures to supportthe end of the screen. The shoe is also provided with the tailings spoutk and grain delivery spout k which are secured rigidly to the shoe andare therefore reciprocated simultaneously with it. v y

L is the fan casing in which is placed the revolving fan shaft Zcarrying the fan or blower Z arranged to deliver a blast of airto theshoe.

Motion is imparted to the shoe by means of spring rods Z connectedpreferably with eecentric straps engaging eccentrics Z of small throw onthe fan shaft. The rods Z are of spring material preferably and arerigidly secured to the shoe which in connection with the spring hangersforms a construction by' liver the tailings to the cylinder, in theusual manner. The elevator belt engages at the lower end of theelevator, a counter shaft m, which extends transversely of the machineand this shaft m forms the driving shaft for the elevator apron n, ofthe straw stacker N. The side rails of the stackerNare preferablyjournaled on the shaft m, and the said stacker is raised and lowered andsupported by any desired means. I have shown a small windlass n providedon top of the machine casing for this purpose.

It will be seen that very few shafts are employed in my machine, namelythe cylinder shaft, the crank shaft the fan shaft and the stacker apronoperating shaft, which also operates the tailin gs elevator. Theconnections for supplying power to these shafts are very simple and maybe arranged in any desired or suitable way. I prefer to arrange suchconnections so that all the other shafts will receive motion from thecylinder shaft, which will receive its motion from the engine or othersource of power.

The grain will be fed to the cylinder and concave and thrashed out, thestraw mixed with grain passing up over the inclined grate O to thewalking rakes while parts of the grain freed from the straw will fallthrough the perforated concave and grate and be conveyed to the shoe bythe inclined extension The straw in passing over the rakes is agitatedand the grain shaken out, while the straw is fed by the walking rakes,to the end of the machine and deposited upon the stacker apron n, whichconveys it to the stack. The grain and unthrashed heads will fall uponthe inclined grain table or bottom H, and the teeth e on the lower sidesof the rakes will convey it down upon the screen or sieve 7c of the shoewhere all the grain is subjected to the action of the blast of the fan.The clean grain will drop through the perforations of the screen and beconducted to the grain spout it by the inclined bottom of the shoe,while the, unthrashed heads, &c. will not .be permitted to fall throughsaid apertures but will pass over the rear end of said screen and fallinto the tailings spout k which will convey them to the tailin gselevator. The perforated screen or sieve k can be adjusted to thedesired inclination as before stated so as to render it most effective.

In rear of the cylinder H is a flexible retaining device or check-boardP for deflecting the flying grain &c. down upon the rakes. This'check-board consists in this instance of a series of stiffening stripspconnected by flexible material such as canvas or leather, the saidstrips 19 being pivotally'supported from a rod p extending across theupper part of the machine. The lower edge of the leather or canvasportion of the check-board is provided with a series of slits orrecesses p to allow the teeth of the rakes to pass through.

What I claim and desire to secure by Letters Patent is:

1. In a thrashing machine the combination with the check board, composedof a series of stiffening strips supported at their upper ends by apivot rod, and flexible material connecting said stiifening strips,substantially as described.

2. In a thrashingmachine the combination with the cylinder and walkingrakes,-of a supporting shaft, the stiffening strips pivotally supportedfrom said shaft, the flexible material connecting said strips, saidmaterial being provided with slits or recesses adjacent to its loweredge to permit the passageof the rake teeth therethrough, substantiallyas described.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM W. DINGEE.

Witnesses:

M. P. DINGEE, W. J. KLING.

